twitch clips manager - grab download urls of clips

clips.js

(function() {
  function findClips() {
    const rows = document.querySelectorAll('[data-a-target=clips-manager-table-row-container]');

    if (!rows.length) {
      console.error('no clip rows found');
    }

    const clips = [];

    for (let i = 0; i < rows.length; i += 1) {
      const clip = rows[i];
      const link = clip.querySelector('a[download^="https://production.assets.clips.twitchcdn.net"');

      if (link.download && link.download.length) {
        clips.push(link.download);
      }
    }

    return clips;
  }

  function encode(jsonifiable) {
    const metadata = JSON.stringify(jsonifiable, null, 2);
    return new Blob([metadata], { type: 'application/json' });
  }

  // main code here:
  const twitchClips = findClips();
  const encodedJSONBlob = encode(twitchClips);
  
  // download as json file
  const downloadEl = document.createElement('a');
  downloadEl.setAttribute('href', URL.createObjectURL(encodedJSONBlob));
  downloadEl.setAttribute('download', 'clips.json');

  document.body.appendChild(downloadEl);
  downloadEl.click();
  document.body.removeChild(downloadEl);
}());